CN118653870B - Underground ventilation dust-settling device suitable for coal mining engineering - Google Patents
Underground ventilation dust-settling device suitable for coal mining engineering Download PDFInfo
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- CN118653870B CN118653870B CN202410747038.9A CN202410747038A CN118653870B CN 118653870 B CN118653870 B CN 118653870B CN 202410747038 A CN202410747038 A CN 202410747038A CN 118653870 B CN118653870 B CN 118653870B
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- 238000009423 ventilation Methods 0.000 title claims abstract description 49
- 238000005065 mining Methods 0.000 title claims abstract description 26
- 239000003245 coal Substances 0.000 title claims abstract description 24
- 239000000428 dust Substances 0.000 claims abstract description 202
- 238000001914 filtration Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 230000000712 assembly Effects 0.000 claims abstract description 15
- 238000000429 assembly Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000009467 reduction Effects 0.000 claims abstract description 3
- 238000004891 communication Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000889 atomisation Methods 0.000 abstract description 11
- 238000005507 spraying Methods 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/20—Drawing-off or depositing dust
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F3/00—Cooling or drying of air
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a down-hole ventilation dust fall device suitable for coal mining engineering, which belongs to the technical field of ventilation dust fall of coal mining, wherein a dust removing mechanism is in a working mode of mainly removing dust and ventilating, spraying atomization is used as assistance, when the down-hole ventilation dust fall device works, a plurality of groups of dust collecting assemblies arranged on a dust collecting pipe are used for carrying out multi-point suction on tunnel dust, the dust collecting assemblies can rotate circumferentially, the suction direction can be adjusted in an omnibearing manner, the dust suction range is enlarged, the dust sucked into the dust collecting pipe by the dust collecting assemblies is independently filtered by a plurality of filtering structures, the dust removing effect is improved, the dust removing is carried out, the outside air is introduced into the top of the tunnel by utilizing a ventilation pipe, the outside air is ventilated from top to bottom, in addition, a water inlet pipe matched with an atomization nozzle penetrates through the plurality of filtering structures from bottom to top, the top atomization effect is realized, the temperature reduction effect on the filtered air is also facilitated, and the air discharged out of a mine can reach the dust removing and cooling standard.
Description
Technical Field
The invention relates to the technical field of ventilation and dust fall in coal mining, in particular to a downhole ventilation and dust fall device suitable for coal mining engineering.
Background
In the mine construction and production processes, because the diffusion condition of the mining working face is limited, dust generated in the mining operation is extremely harmful to the human body, fine dust particles are sucked into the human body to cause certain harm to the human body, a heavy person can generate pneumoconiosis, explosion can be generated under the condition of high temperature and high pressure, and certain pollution is caused to the environment when the dust particles are discharged into the atmosphere.
In the conventional mine exploitation process, a ventilation system is usually arranged under the mine, ventilation of the mine in the prior art is mostly realized by an integral ventilation pipeline, a fully-mechanized working position of the mine extends to the outside of the mine and is matched with a fan for ventilation, dust in air in the ventilation process is pumped out along with air flow, and the dust is easily adhered in the pipeline in the long-path flowing process, so that the pipeline is blocked.
In order to reduce the dust content in the air outside the mine, the dust removal is generally carried out by utilizing a spraying mode at present, a large amount of waste water can be generated in the dust removal mode on occasions with larger load and more dust particles, and the large amount of waste water is generated due to the large load of spraying dust removal and the large water flow required during spraying.
For this reason, we propose a downhole ventilation and dust-settling device suitable for coal mining engineering.
Disclosure of Invention
Compared with the prior art, the underground ventilation dust-settling device suitable for coal mining engineering provided by the invention is in a working mode of taking dust removal and ventilation as main materials and spraying atomization as auxiliary materials, when the underground ventilation dust-settling device is in work, a plurality of groups of dust collection assemblies arranged on a dust collection pipe are used for carrying out multipoint suction on tunnel dust, the dust collection assemblies can rotate circumferentially, the suction direction can be adjusted in an omnibearing manner, the dust suction range is enlarged, the dust sucked into the dust collection pipe by the dust collection assemblies is independently filtered by a plurality of filtering structures, the dust collection effect is improved, the air exchange pipe is utilized to guide external air to the top of the tunnel when the dust is removed, and in addition, a water inlet pipe matched with an atomization nozzle penetrates through the plurality of filtering structures from bottom to top, so that the effect of atomizing at the top is realized, and the effect of cooling the filtered air is also facilitated.
The underground ventilation dust-removing device suitable for coal mining engineering comprises a vertical pipe and a transverse pipe which are vertically arranged, wherein the bottom end of the transverse pipe is provided with a plurality of dust removing mechanisms, each dust removing mechanism comprises a walking seat, the upper end of the walking seat is fixedly connected with a dust removing pipe connected with the transverse pipe, the dust removing pipe is rotatably provided with a plurality of dust collecting components along the vertical direction through a driving structure, each dust collecting component comprises an annular sleeve which rotates on the dust removing pipe and is provided with an opening at one end, the opening is connected with a dust collecting nozzle with a dust collecting fan, and the outer end wall of the dust removing pipe is provided with a plurality of dust inlet openings communicated with the dust collecting nozzle;
The dust removal pipe is internally and fixedly provided with a plurality of groups of filtering structures which are positioned above the dust collection assemblies one by one, the filtering structures comprise exhaust sleeves and communication sleeves which are fixed inside the dust removal pipe and distributed up and down, a filtering space is formed between the exhaust sleeves and the communication sleeves, an inner filter screen and an outer filter screen which are sleeved inside and outside are arranged in the filtering space, the outer end of the dust removal pipe is distributed with a plurality of air guide pipes which are communicated with the exhaust sleeves, and the outer ends of the air guide pipes are externally connected with exhaust pipes which are arranged on the transverse pipes;
The top of the dust removal pipe is inserted with an air exchange pipe extending to the outside of the vertical pipe, the bottom end of the air exchange pipe is provided with a water inlet pipe which downwards penetrates through the air exhaust sleeve, the inner filter screen, the communication sleeve and extends to the outside of the walking seat in sequence, one end of the air exchange pipe, which is close to the water inlet pipe, is fixedly connected with a jet head penetrating to the outside of the dust removal pipe, the top of the water inlet pipe is fixedly sleeved with a communication pipe communicated with the air exchange pipe, and a plurality of atomizing nozzles connected with the communication pipe are annularly distributed at the outer side of the top of the dust removal pipe.
Further, standpipe and violently manage and be connected by the hard pipe and the flexible pipe of a plurality of crisscross settings, and dust removal pipe fixed connection is on the hard pipe of violently managing, with standpipe, violently manage and set up scalable form to can carry out length adjustment according to actual tunnel, violently manage and install in the top of mine comprehensive dig work tunnel, dust removal pipe is perpendicular downwards, relies on the dust removal position of distributing of a plurality of dust removal pipes of walking seat regulation according to actual need, compare fixed installation, effectively improve the flexibility of dust removal ventilation in the tunnel.
Further, the upper end and the lower end of the annular sleeve are fixedly connected with rotating rings with inward expanding diameters, and annular grooves for the rotating embedding installation of the rotating rings are formed in the end walls of the dust removing pipes, which are positioned above and below the dust inlet.
Further, the driving structure comprises a plurality of bearing plates fixedly sleeved on the dust removal pipe, each bearing plate is arranged below the plurality of rotating rings in a one-to-one correspondence manner, a pair of transmission gears engaged in a meshed manner are rotatably arranged on the bearing plates, and one transmission gear is fixedly sleeved on the rotating rings.
Further, the rotating shaft is rotatably arranged on the walking seat, the upper end of the rotating shaft sequentially penetrates through the supporting plates, the transmission gear and is rotatably arranged at the bottom end of the transverse tube, the driving motor for rotationally driving the rotating shaft is fixedly arranged inside the walking seat, and the synchronous rotation of the dust collection assemblies is realized by utilizing the cooperation of the rotating shaft and the transmission gear which is arranged in a plurality of pairs of meshing manner, so that the air suction direction of the dust collection fan is comprehensively adjusted, the dust collection assembly is conveniently sucked into the dust collection assembly, and the dust suction range is enlarged.
Further, a semi-annular groove communicated with the filtering space is formed in the outer end wall of the dust removing pipe, and a cover plate is installed at the semi-annular groove in a butt joint mode.
Further, the inner filter screen and the outer filter screen are of semi-annular structures, the upper end and the lower end of the inner filter screen are respectively provided with an upper bearing ring and a lower bearing ring, and embedded grooves for embedding and installing the outer filter screen and the inner filter screen are formed in the lower bearing ring and the upper bearing ring.
Further, the communication cover is linked together with interior filter screen, the inside of dust removal pipe, reserve the circulation space between outer filter screen and the dust removal pipe inner wall, the ventilation chamber that is linked together with the circulation space has been seted up to exhaust cover end wall, ventilation chamber inner wall fixedly connected with is linked together with the one-way admission valve that sets up of inlet tube end wall, through one-way admission valve, realize the intercommunication between circulation space, exhaust cover and the inlet tube, when the air circulation in the mine comprehensive digs the tunnel is not enough, then open one-way admission valve, in will filtering the air after the dust removal and discharging into the inlet tube, play further dust removal cooling effect to the air, the air after the processing then outwards spouts by a plurality of atomizer along with the spray liquid, effectively improve the wet air content in the mine comprehensive dig tunnel.
Further, the outer diameter of the lower bearing ring is consistent with the outer diameter of the communicating sleeve, the upper bearing ring is consistent with the inner diameter of the ventilation cavity, the outer filter screen and the inner filter screen are arranged into two semi-annular structures, so that when the filter screen is installed, after the cover plate is detached outwards, one group of the outer filter screen and the inner filter screen are butted between the exhaust sleeve and the communicating sleeve, the inner filter screen faces the water inlet pipe, the outer filter screen is rotated until the lower bearing ring is positioned in the semi-annular groove, and then the other group of the outer filter screen and the inner filter screen are butted, so that the integral installation of the filter structure can be completed.
Further, the lower bearing ring and the upper bearing ring are made of magnetic materials, and after the inner bearing ring and the outer bearing ring are in butt joint, the magnetic connection is adopted, so that the stability of the filter structure after being integrally installed is improved.
Compared with the prior art, the invention has the advantages that:
(1) The dust removing mechanism mainly removes dust and ventilates, spraying atomization is used as assistance, in operation, the multiple groups of dust collecting components arranged on the dust removing pipe are used for carrying out vertical multi-point suction on dust in a mine fully-mechanized roadway and in the horizontal direction, the multiple groups of dust collecting components can rotate circumferentially, the suction direction is adjusted in an omnibearing manner, the dust suction range is enlarged, dust sucked into the dust removing pipe by the multiple dust collecting components is independently filtered through the multiple filtering structures, the dust removing effect is improved, when dust is removed, the outside air is introduced into the top of the roadway by utilizing the ventilation pipe, and in addition, the outside air penetrates through the multiple filtering structures from bottom to top by the water inlet pipe matched with the multiple atomization nozzles, so that the air in the roadway after filtration can be cooled while the atomization effect at the top is realized, and the air outside the mine can be discharged to reach the dust removing and cooling standard.
(2) The technical scheme is that the exhaust sleeves at the top ends of the plurality of filtering structures are communicated with the water inlet pipe, specifically, the end wall of the bottom of the exhaust sleeve is provided with a ventilation cavity communicated with the circulation space, the inner wall of the ventilation cavity is fixedly connected with a one-way air inlet valve communicated with the end wall of the water inlet pipe, the communication among the circulation space, the exhaust sleeves and the water inlet pipe is realized through the one-way air inlet valve, when the air flow in the fully-mechanized roadway of a mine is insufficient, the one-way air inlet valve is opened, the air after filtering and dedusting is discharged into the water inlet pipe, the air is further dedusted and cooled, the treated air is sprayed outwards along with spray liquid by a plurality of atomizing spray heads, and the moist air content in the fully-mechanized roadway of the mine is effectively improved in a short time.
(3) Standpipe in this scheme and violently manage and be connected by the hard pipe and the flexible pipe of a plurality of crisscross settings, and dust removal pipe fixed connection is on the hard pipe of violently managing, with standpipe, violently manage and set up scalable form, can carry out length adjustment according to actual tunnel, violently manage and install in the top of mine comprehensive dig work tunnel, dust removal pipe is perpendicular downwards, relies on the dust removal position of a plurality of dust removal pipes of walking seat regulation, compares fixed installation, effectively improves the flexibility of dust removal ventilation in the tunnel.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the dust removing structure of the present invention;
FIG. 3 is a schematic view of the structure of the cover plate of the present invention when the cover plate is detached from the dust removing pipe;
FIG. 4 is a schematic view of the structure of the invention when the dust collection assembly and the support plate are detached from the dust collection pipe;
FIG. 5 is a partial cross-sectional view of the junction of the dust removal mechanism and cross tube of the present invention;
FIG. 6 is a cross-sectional view of the junction of the dust collector tube, the dust collection assembly and the filter structure of the present invention;
fig. 7 is a partial cross-sectional view of the invention in operation.
The reference numerals in the figures illustrate:
1. a standpipe; 2, horizontal pipes, 3, dust removing pipes, 301, dust inlet, 302, cover plate, 303, annular grooves, 4, walking seat, 5, supporting plate, 6, dust collecting assembly, 61, annular sleeve, 62, dust collecting nozzle, 63, dust collecting fan, 64, rotating ring, 7, driving gear, 8, rotating shaft, 9, water inlet pipe, 10, ventilation pipe, 101, jet head, 11, filtering structure, 111, outer filter screen, 112, inner filter screen, 113, lower bearing ring, 114, upper bearing ring, 12, exhaust sleeve, 121, unidirectional air inlet valve, 13, communicating sleeve, 14, exhaust pipe, 15, connecting sleeve, 16, communicating pipe, 17 and atomizing nozzle.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, based on the embodiments of the present invention, and all other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of the present invention.
The invention discloses a downhole ventilation and dust settling device suitable for coal mining engineering, referring to fig. 1, comprising a vertical pipe 1 and a horizontal pipe 2 which are vertically arranged, wherein the bottom end of the horizontal pipe 2 is provided with a plurality of dust removing mechanisms, the vertical pipe 1 and the horizontal pipe 2 are connected by a plurality of rigid pipes which are arranged in a staggered way and telescopic pipes, the dust removing pipes 3 are fixedly connected to the rigid pipes of the horizontal pipe 2, the vertical pipe 1 and the horizontal pipe 2 are arranged in a telescopic way, so that the length of the vertical pipe can be adjusted according to an actual roadway, the horizontal pipe 2 is arranged at the top of a fully-mechanized coal mining working roadway, the dust removing pipes 3 are vertically downwards, and the dust removing distribution positions of the dust removing pipes 3 are adjusted according to actual needs by a walking seat 4.
Referring to fig. 2-4, the dust removing mechanism includes a walking seat 4, a dust removing pipe 3 fixedly connected to the upper end of the walking seat 4 and connected to the transverse pipe 2, a plurality of dust collecting components 6 are rotatably mounted on the dust removing pipe 3 along the vertical direction through a driving structure, the dust collecting components 6 include an annular sleeve 61 rotating on the dust removing pipe 3 and having an opening at one end, the outer end of the annular sleeve 61 is connected with a dust collecting nozzle 62 communicated with the opening and provided with a dust collecting fan 63, and a plurality of dust inlet 301 communicated with the dust collecting nozzle 62 are formed on the outer end wall of the dust removing pipe 3;
The upper end and the lower end of the annular sleeve 61 are fixedly connected with rotating rings 64 with inward expanding diameters, annular grooves 303 used for rotationally embedding and installing the rotating rings 64 are formed in the end walls of the dust collecting pipe 3, which are positioned above and below the dust inlet 301, the driving structure comprises a plurality of bearing plates 5 fixedly sleeved on the dust collecting pipe 3, each bearing plate 5 is arranged below the corresponding rotating rings 64 one by one, a pair of transmission gears 7 engaged with each other are rotatably arranged on the bearing plates 5, and one transmission gear 7 is fixedly sleeved on the corresponding rotating ring 64;
The rotating shaft 8 is rotatably arranged on the walking seat 4, the upper end of the rotating shaft 8 sequentially penetrates through the supporting plates 5, the transmission gear 7 and is rotatably arranged at the bottom end of the transverse tube 2, a driving motor for rotatably driving the rotating shaft 8 is fixedly arranged inside the walking seat 4, and the synchronous rotation of the dust collection assemblies 6 is realized by utilizing the cooperation of the rotating shaft 8 and the transmission gear 7 which are meshed with the pairs, so that the suction direction of the dust collection fan 63 is regulated in an omnibearing manner, the dust collection assembly 6 is conveniently sucked into the dust collection assembly, and the dust suction range is enlarged.
Referring to fig. 5-7, a plurality of groups of filtering structures are fixedly installed inside the dust removing pipe 3 and located above the dust absorbing assemblies 6 one by one, the filtering structures comprise an exhaust sleeve 12 and a communication sleeve 13 which are fixed inside the dust removing pipe 3 and distributed up and down, a filtering space is formed between the exhaust sleeve 12 and the communication sleeve 13, an inner filter screen 112 and an outer filter screen 111 which are sleeved inside and outside are fixedly installed in the filtering space, a circulating space is reserved between the outer filter screen 111 and the inner wall of the dust removing pipe 3, a plurality of air guide pipes which are communicated with the exhaust sleeve 12 are distributed at the outer end of the dust removing pipe 3, the air guide pipes are connected through an exhaust pipe 14, and the upper end of the exhaust pipe 14 is connected to the transverse pipe 2.
The dust air sucked by the dust suction assembly 6 is guided into the inner filter screen 112 upwards through the communication sleeve 13, sequentially passes through the inner filter screen 112 and the outer filter screen 111 from inside to outside, is filtered twice, the size of the filter holes of the inner filter screen 112 is larger than that of the filter holes of the outer filter screen 111, the filtered air is guided into the exhaust sleeve 12 upwards through the circulation space, is discharged into the exhaust pipe 14 through the air duct at the exhaust sleeve 12, and finally is discharged to the outside of the mine through the transverse pipe 2 and the vertical pipe 1 through the exhaust pipe 14.
The top of the dust removal pipe 3 is inserted with a ventilation pipe 10 extending to the outside of the vertical pipe 1, the bottom end of the ventilation pipe 10 is provided with a water inlet pipe 9 which sequentially penetrates through the air exhaust sleeve 12, the inner filter screen 112, the communication sleeve 13 and extends to the outside of the walking seat 4, one end of the ventilation pipe 10, which is close to the water inlet pipe 9, is fixedly connected with a jet head 101 penetrating through the outside of the dust removal pipe 3, the top of the water inlet pipe 9 is fixedly sleeved with a communicating pipe 16 communicated with the water inlet pipe, a plurality of atomizing nozzles 17 connected with the communicating pipe 16 are annularly distributed at the outer side of the top of the dust removal pipe 3, the top of the dust removal pipe 3 is fixedly sleeved with a connecting sleeve 15 corresponding to the position of the communicating pipe 16, and the inner ends of the atomizing nozzles 17 penetrate through the connecting sleeve 15 and are connected to the communicating pipe 16.
In the multi-point air suction and dust removal process, outside air is supplied into a fully-mechanized coal mining roadway by utilizing an air exchange pipe 10 and a jet head 101, and the outside air is ventilated from top to bottom, and in addition, a plurality of filtering structures are penetrated from bottom to top by a water inlet pipe 9 matched with a plurality of atomizing nozzles 17, so that the top atomization effect is realized, and meanwhile, the air in the filtered roadway is cooled, and the air outside the mine is enabled to reach the dust removal and temperature reduction standard.
Example 2 this example further optimizes the filter structure and the dust removal pipe structure for installing the filter structure based on example 1, specifically as follows:
referring to fig. 3-5, a semi-annular groove communicated with the filtering space is formed in the outer end wall of the dust removing pipe 3, a cover plate 302 is butt-jointed and mounted at the semi-annular groove, and the semi-annular groove is formed in the outer end wall of the dust removing pipe 3, so that the filter structure is mounted at the filtering space, and the filter structure is convenient to detach and replace;
The inner filter screen 112 and the outer filter screen 111 are of semi-annular structures, an upper bearing ring 114 and a lower bearing ring 113 are respectively arranged at the upper end and the lower end of the inner filter screen 112, embedded grooves for embedding and installing the outer filter screen 111 and the inner filter screen 112 are respectively arranged on the lower bearing ring 113 and the upper bearing ring 114, and the outer filter screen 111 and the inner filter screen 112 are conveniently installed between the lower bearing ring 113 and the upper bearing ring 114.
The communication sleeve 13 is communicated with the inner filter screen 112 and the inside of the dust removing pipe 3, a ventilation cavity communicated with the circulation space is formed in the bottom end wall of the exhaust sleeve 12, the inner wall of the ventilation cavity is fixedly connected with a one-way air inlet valve 121 communicated with the end wall of the water inlet pipe 9, the communication among the circulation space, the exhaust sleeve 12 and the water inlet pipe 9 is realized through the one-way air inlet valve 121, when the air flow in the fully-mechanized coal mining roadway is insufficient, the one-way air inlet valve 121 is opened, the air after filtering and dust removing is discharged into the water inlet pipe 9, the air is subjected to further dust removing and temperature reducing effects, and the treated air is sprayed outwards along with spray liquid through a plurality of atomizing nozzles 17, so that the moist air content in the fully-mechanized coal mining roadway is effectively improved.
The outer diameter of the lower bearing ring 113 is consistent with the outer diameter of the communication sleeve 13, the upper bearing ring 114 is consistent with the inner diameter of the ventilation cavity, the outer filter screen 111 and the inner filter screen 112 are arranged into two semi-annular structures, so that when the filter structure is installed, after the cover plate 302 is outwards detached, one group of the outer filter screen 111 and the inner filter screen 112 are butted between the exhaust sleeve 12 and the communication sleeve 13, the inner filter screen 112 faces the water inlet pipe 9, the outer filter screen 111 is rotated until the lower bearing ring 113 is positioned in the semi-annular groove, and the other group of the outer filter screen 111 and the inner filter screen 112 are butted, so that the integral installation of the filter structure can be completed;
In addition, the lower bearing ring 113 and the upper bearing ring 114 are made of magnetic materials, after the inner bearing ring 113 and the outer bearing ring 114 are in butt joint, the magnetic connection is adopted, the stability of the whole filter structure after being installed is improved, and after the filter structure is installed, the cover plate 302 is installed at the semi-annular groove.
In summary, the horizontal pipe 2 is provided with the plurality of groups of movable dust removing mechanisms along the horizontal direction, and the dust removing distribution positions of the plurality of dust removing pipes 3 are adjusted by the walking seat 4 according to the actual roadway length, so that the flexibility of dust removing and ventilation in the roadway is effectively improved compared with the fixed installation;
The dust removing mechanism mainly removes dust and ventilates, spraying atomization is used as assistance, when the dust removing mechanism works, a plurality of groups of dust absorbing assemblies 6 arranged on the dust removing pipe 3 are used for carrying out multi-point suction on dust in a fully-mechanized roadway of a mine in the vertical and horizontal directions, the plurality of groups of dust absorbing assemblies 6 can carry out circumferential rotation, the suction direction of a dust absorbing fan 63 is regulated in all directions, the dust sucking range is enlarged, the dust sucked into the dust removing pipe 3 by the plurality of dust absorbing assemblies 6 is independently filtered by a plurality of filtering structures, the dust removing effect is improved, the outside air is introduced into the top of the roadway by utilizing the ventilation pipe 10 while the dust is removed, and in addition, a plurality of filtering structures penetrate through from bottom to top by a water inlet pipe 9 matched with a plurality of atomizing nozzles 17, so that the filtered roadway air can be cooled while the atomization effect of the top is realized, and the air discharged out of the mine can reach the dust removing and cooling standard;
In addition, when the air flow in the fully-mechanized roadway of the mine is insufficient, the one-way air inlet valve 121 at the exhaust sleeve 12 is opened, filtered and dedusted air is discharged into the water inlet pipe 9, the air is further dedusted and cooled, the treated air is sprayed outwards along with spray liquid by the plurality of atomizing nozzles 17, and the moist air content in the fully-mechanized roadway of the mine is effectively improved in a short time.
The above description is only of the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, any person skilled in the art should be able to make equivalent substitutions or modifications within the technical scope of the present invention, and the technical solution and the modified concept according to the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The underground ventilation and dust reduction device suitable for the coal mining engineering comprises a vertical pipe and a transverse pipe which are vertically arranged, and is characterized in that the bottom end of the transverse pipe is provided with a plurality of dust removal mechanisms, each dust removal mechanism comprises a walking seat, the upper end of each walking seat is fixedly connected with a dust removal pipe connected with the transverse pipe, the dust removal pipe is rotatably provided with a plurality of dust collection assemblies along the vertical direction through a driving structure, each dust collection assembly comprises an annular sleeve which rotates on the dust removal pipe and is provided with an opening at one end, the opening is connected with a dust collection nozzle with a dust collection fan, and the outer end wall of each dust removal pipe is provided with a plurality of dust inlet openings communicated with the dust collection nozzle;
The dust removal pipe is internally and fixedly provided with a plurality of groups of filtering structures which are positioned above the dust collection assemblies one by one, the filtering structures comprise exhaust sleeves and communication sleeves which are fixed in the dust removal pipe and distributed up and down, a filtering space is formed between the exhaust sleeves and the communication sleeves, an inner filter screen and an outer filter screen which are sleeved inside and outside are arranged in the filtering space, the outer end of the dust removal pipe is provided with a plurality of air guide pipes which are communicated with the exhaust sleeves, and the outer ends of the air guide pipes are externally connected with exhaust pipes which are arranged on the transverse pipes;
the dust removal pipe top is inserted and is equipped with the blast pipe that extends to the standpipe outside, the blast pipe bottom is installed and is run through exhaust cover, interior filter screen, intercommunication cover downwards in proper order and extend to the outer inlet tube of walking seat, the blast pipe is close to inlet tube one end and is connected with and runs through the outer jet head of dust removal pipe, the fixed communicating pipe that is linked together rather than having cup jointed in inlet tube top, dust removal pipe top outside annular distributes has a plurality of atomizer that are connected with communicating pipe.
2. The underground ventilation and dust removal device for coal mining engineering, wherein the vertical pipe and the horizontal pipe are connected through a plurality of rigid pipes and telescopic pipes which are arranged in a staggered mode, and the dust removal pipe is fixedly connected to the rigid pipes of the horizontal pipe.
3. The underground ventilation and dust removal device for coal mining engineering according to claim, wherein the upper end and the lower end of the annular sleeve are fixedly connected with rotating rings with inward expanding diameters, and annular grooves for rotating and installing the rotating rings are formed in the end walls of the dust removal pipe, which are positioned above and below the dust inlet.
4. The underground ventilation and dust settling device for coal mining engineering, which is characterized in that the driving structure comprises a plurality of supporting plates fixedly sleeved on the dust removal pipe, each supporting plate is arranged below a plurality of rotating rings in a one-to-one correspondence manner, a pair of transmission gears engaged with each other are rotatably arranged on the supporting plates, and one transmission gear is fixedly sleeved on the rotating rings.
5. The underground ventilation and dust removal device suitable for coal mining engineering according to claim, wherein the walking seat is rotatably provided with a rotating shaft, the upper end of the rotating shaft sequentially penetrates through the bearing plates and the transmission gear and is rotatably arranged at the bottom end of the transverse tube, and a driving motor for rotatably driving the rotating shaft is fixedly arranged in the walking seat.
6. The underground ventilation and dust-settling device for coal mining engineering according to claim, wherein the outer end wall of the dust removing pipe is provided with a semi-annular groove communicated with the filtering space, and a cover plate is arranged at the semi-annular groove in a butt joint mode.
7. The underground ventilation and dust settling device suitable for coal mining engineering is characterized in that the inner filter screen and the outer filter screen are of semi-annular structures, an upper bearing ring and a lower bearing ring are respectively arranged at the upper end and the lower end of the inner filter screen, and embedded grooves for embedding and installing the outer filter screen and the inner filter screen are respectively formed in the lower bearing ring and the upper bearing ring.
8. The underground ventilation and dust settling device for coal mining engineering according to claim, wherein the communication sleeve is communicated with the inner filter screen and the inside of the dust removing pipe, a circulation space is reserved between the outer filter screen and the inner wall of the dust removing pipe, a ventilation cavity communicated with the circulation space is formed in the bottom end wall of the exhaust sleeve, and the inner wall of the ventilation cavity is fixedly connected with a one-way air inlet valve communicated with the end wall of the water inlet pipe.
9. The underground ventilation and dust-settling device for coal mining engineering, wherein the outer diameter of the lower bearing ring is consistent with the outer diameter of the communicating sleeve, and the diameter of the upper bearing ring is consistent with the diameter of the inner ring of the ventilation cavity.
10. The underground ventilation and dust-settling device for coal mining engineering, wherein the lower bearing ring and the upper bearing ring are made of magnetic materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410747038.9A CN118653870B (en) | 2024-06-11 | 2024-06-11 | Underground ventilation dust-settling device suitable for coal mining engineering |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410747038.9A CN118653870B (en) | 2024-06-11 | 2024-06-11 | Underground ventilation dust-settling device suitable for coal mining engineering |
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| CN118653870A CN118653870A (en) | 2024-09-17 |
| CN118653870B true CN118653870B (en) | 2025-05-02 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213807744U (en) * | 2020-12-09 | 2021-07-27 | 杨凡 | Ventilation device for coal mining of coal mine |
| CN115628098A (en) * | 2022-09-07 | 2023-01-20 | 内蒙古蒙泰不连沟煤业有限责任公司 | Dust removal equipment in coal mining |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE212020000424U1 (en) * | 2020-12-19 | 2021-02-25 | Changmin (Suzhou) Information Technology Co., Ltd | Dust removal device for construction work |
| CN217057857U (en) * | 2022-03-14 | 2022-07-26 | 江苏南天振联汽车饰件有限公司 | Dust-free purification workshop is with high-efficient dust device |
| CN217028992U (en) * | 2022-03-29 | 2022-07-22 | 高恒 | Fast clear type colliery tunnelling tunnel dust removal integrative device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213807744U (en) * | 2020-12-09 | 2021-07-27 | 杨凡 | Ventilation device for coal mining of coal mine |
| CN115628098A (en) * | 2022-09-07 | 2023-01-20 | 内蒙古蒙泰不连沟煤业有限责任公司 | Dust removal equipment in coal mining |
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| CN118653870A (en) | 2024-09-17 |
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